Method and apparatus for packing cartridges



ug.'2l, 1928.

N. D. FULTON METHOD AND APPARATUS FOR PACKING CARTRIDGES Filed Sept. 21,1927 4 Sheets-Sheet 1 sy @49km Z142? l Aug. 21, 192s.

' 1,681,181 N. D. FULTON v METHOD AND APPARATUS FOR PACKING CARTRIDGESFiled sept. 2i, 1927 l .4 sneetsdsheet 2 I /Varmw/zg lala/fo?? Auggzl,192s. 1,681,1sl

N. D. FULTON METHOD AND APPARATUS FOR PAGKINGfl CARTRIDGES Filed sept.21, 1927 4 sheets-sheet 5 l A i l 68 86 l W 6 6. MMM/70H /Mrmdngz /C/z/of A 13mm HMM,

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Aug. 21, i928. 1,681,181

N. D. FULTON METHOD AND APPARATUS FOR PACKING CARTRIDGES Filed sept. 21,192'? 4 sheets-sheet 4 v Patented Aug. 2li, 1928.

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QOMPANY, cs vvlmvrrnerom nntaWAnnfACORPORATION or DELAWARE. f

Y METHOD kamm APPARATUS FoRtPAcKIiIe cAR'r-nIjJESd-g"Applicationledsepte'mbei' 21,1192?.iSeriaLNoaZZOB.

This invention relates toa -machine for packing gelatin dynamite intoshells and closing the shells to form cartridgesv More particularly itrelates to ja machine Which the''feedingof the dynamite is automaticallydiscontinued When the desired charge has been vfed into 'the she'll, andin Whichzthe dynamite is` cut off adjacent the top Aof the shell, tampedinto the shell, andthe .shell subsequently closed by crimpingthe openend. f. i

An obj ct ofl this" invention'is the provisionl of a machine for fillingshells With gelatin dynamite which is provided with a Aknife forsevering the dynamite adjacent the top of the shell thus rinsuring thatan accuratr-Blyy measured charge is introduced into the shell. A furtherobject the provision yof an improved method for vfilling ydynamitercartridges Which method' is advantageously, carried outby the machine.

In the drayvingsf Fig. l is an elevation of the front .ofthe machine? Hr.. 5 i

.Fig 3 is a plan vview ofthe-dynamite cutting knife ,f Fig. 4 is-asectional view'shovvingthe'operating devices for the and its relavtionto thedynamite feeding mechanism;

Fig. 5 is a'plan'yievvof the tamping rod carrying plate; l j i y` Fig..6 fs a plan view ,partly in section, ofthe tamping rods with shellspriortot e tamping ope/ration; l Fig. 7 is a view similar to'Fig.6-shovving the tamping operation; and Fig. 8A is a sectional View ofIthe valve which controls the feeding of the dynamite.

The machine comprises a suitable 'frame 2- i on :Which'are mounted A'thevarious operating clutch 1 4 to ashaft'f16' carryinggeai" 18 whichmeshes a splined shaft A 8 to drive the feed screw:N'v'ithnit,yliovve'\'1'er',y v4preventing Vvertical movement of" shaft 8" v withtheI piston. TheA` clutch isfc'on'trolled a lever 22 opratedby' a in'cylindery pliinger s 34.

24 .in =.amanner. hereinafter described. `The bottom` ofthe hopper isprovided With nipples 26 through vvhiich the dynamiteis fed into theshells. y

carryingrods 32 mounted for vertical movesp'der28,carr1es'tablesprovided with ment in 'the spider'. Vertical movements is moved stepstep manually blyf'th'e operatoii' As shovrn' spider'` 28.carries"'fo'urtables 30, When 'one vis' ali'gredvvith plunger 34, -tvyo Mothers" are'lalig'nedfvvith "plungers 38' and 42." lLever l'48jisengagedbyafprojection 46 when the vcorresponding trod x 32 moves over plunger34. "Itl Will beunderr`stood, therefore, that'aisfy soon`"'as afr'od 32reaches'this poitioml itfvvill be raised'by `Referenc`e "tdFigfQ willshow that, ivhen a'rod 32 is raised, projection 46 Will clear the"cylinders Willfhovvever, maintain the jplu'ngers-in raised position'.When"projec tion 46' is 'again flowered,` it,A will pass beyond lever48, "Wh'ich is eccetrically'-mounted.

Accordingly valve 52is a ctuatedoiilyj'once i each table'as itm'oves'tollling position.

l `i`le"ading` int abore'in'a valve "60 in'which parte of the machine.A'hep'pen 4 fis pro- `vided with afeed screvvgG mounted onV a" .shaft 8vvhichis supported 'affpiston in ,cylinder 1 0 thewusvual manner. A`povv'erdriven shaft l2 is coupled by nieansfof a lthe" valve aiil.havinga' .small 'hole 64"'fthere- 'the"'e ntrance .58.12

Pli'in'ger 3'4 is' providedf vvjith'r'an adjustable 'Uni .l I...

inders.

projection 70 arranged to engage the protruding end of piston 62. .Therise of plunger 34 is very rapid, so that hole 64 is `carried upwardlypast y58 and .66 without any appreciable loss of air from the cyl- 10.Pipe 74 is also connected with valve 52.`

A pipe 76 at the bottom of cylinder 1000mmunicates` constantly with vasupplyfof'compressed air. lVhen the upper end of cylinder l isexhausted,the pressure'at the bot'- 'l tom thereof acts below the piston and;maintains feed screw 6 in raised position. Actucarries, sincethe'pressures above'and below balance eachother. A place through valve60, the pressure above -4the piston' is removedand the `feed screw 'willrise.

Cylinder 24y is similarly provided with pipes78 and 8 0,. '7 8communicating with pipe 72 and valve `52', whilep ipef80 coniinunicates,constantly with 'asupply ofl compressed air. The piston is normally heldto the right end ofthe cylinder 24,' (as viewed. `in Fig. l), againstthe pressure of a. spring bythe pressure on its left side, but, upon 1actuation of valve 52, ritis forced tothe left by the spring since theair'press'ureson both sides of the piston become equal'. Then the pistonmoves to the left Vthe clutch'is engaged andthe feedfscrew driven.

Aknife 82, carried by `rods 84, ittediwith pistons 86 which operate in4cylinders V88,

reciprocates directly under the feeding nipples 26. By actuation of, avsuitable valve, 1 the operatormay at will admit air to either endof the4cylinders to actuate the knife when desired. i

Positioned `above plunger 38-faretamping rods 90,'suitably aligned tocooperate with the shells and carried by a plate 92 in'anysuitablemanner. Similarly positioned above plunger 42 is acrimpingmechanismA 94'of the common type.

Shells Ay are placedin a shuttle B which is'positioned by an operatorlon a table 30 located inthe position ofthe one shown at the .extremerleft by F ig.v 2. The Vtable is clutch 14 to be engaged' andvfeed screw6to then movedvto a position over plunger 34.

Aiszitapproaches this'position, valve 52I is actuatedproducing an upwardmovement of plungers 34, 38 and142r andv also 'allowing diop,thus'starting the feeding ofthe dynamite C in the hopper. it raisesvtable 30, moving the ends of the shells overvnipples 26.l At the sametime, it

Duringthe period Yin which plunger.

When eihaustion takesA AsI plunger 4 34 rises,

ton 62 yis also forceddownwardly untilhole 64 is'aligiied with-opeiiings58fandf66. Since the movement of 62 is.slow, exhaustion takes place frompipe 58, allowing pl'ungers 34,'38'and'42 to drop, disengagingclutch14vand lifting feed-screw 6.* 'Because ofthe rapid 'drop yof shells A, theviscous dynamite is pulled out vinto contracted rods as shown g kat Dlin Fig. 3. ation of valve 52 admits air through pipe 7 4 above thepiston which then drops due to its own lweight and that of parts whichit Knife 82,is .then actuated by the operator to cutfthe rods ofdynamite between the shells and the nipples immediately above the shellsand as close 'as possible vthereto,"leaving the dynamite in the upperends `ofthe shells lin the form of truncated cones such as shown lat EinFig. 6.

Spider 28 is tl'ienfrotated `another'quarter turn when unfilled shellsare brought under the hopper'and tliejfilled shells are-brought undertamping rods 90. Rise of plunger 38 v movesv the Aopen ends of theshells over rods 9 0 and the cones E of dynainite'are compressed intothe shells as shown in Fig. 7, a yielding pressure being obtained'sinceplungg exhaustion ,takes place through valve 60,

' plunger 38 drops carrying they, shells downwardlyof rods 90, f lsubsequent vquarter turn of spider 28 moves the tamped"` shells under"crimping j mechanism 94where the shells are crimped in the usualImannerfupon ythe raising and ',It vwill be noted tliatthis ma( dynamitewhile leaving the upper end'of'the shell empty so that the walls maybecrimped fer38 is moved lby compressed air. lWhen orA folded inwardlyto closethe cartridge.

This method consists 'of partially fillingthe shell from afsupply andthen pulling theshell to ar'distan'cefrom thev supply so that theviscous charge is drawn vinto a contracted rod which is cut adjacent theopen end ofV the shell leaving a truncated cone of material which is1readilyy tamped downfbelow the openfend ofthe'shell.

.Wvhat I claim as my'invention and desire ftofprotectby Letters Patentis:' filln a machine for filling a shell with y.viscous material, meansfor feeding achargef of material to "a` shell when the `shell/andfeeding means arelocated in filling' relationship, and .cutting meansfor severing Inaterial extending between the feeding means shell havebeen relatively moved from filling relationship.

2. In a machine for filling a shell with viscous material, means forfeeding a charge of material to the shell when the shell and feedingmeans are located in filling relationship, means for relatively movingthe feeding means and shell from filling relationship. to produce at-apering rod of material extending from the material in the shell, and,cutting means for severing the rod of material adjacent the shell.

3. In a machine for filling a shell with viscous material, means forfeeding a charge of material to the shell when the shell and feedingmeans are located in filling relationship, means actuated automaticallyupon the filling of a predetermined charge into the shell to relativelymove the shell and feeding means from filling relationship to suchrelative positions that a tapering rod of the viscous material willextend from the material in the shell, and, cutting means for severingthe rod of material.

4. In a machine for filling a shell with viscous material, means forfeeding a charge of material to a shell when the shellV and feedingmeans are located in filling relationship, and, cutting means forsevering material extending outwardly from the shell after thefeedingmeans and shell have been relatively moved from llingrelationship.

5. In a shell filling machine, means for feeding a charge to a shellwhen the shell and feeding means are located in filling relationship,means actuated automatically `upon the filling of a predetermined chargeinto the shell to relatively move the shell and feeding means fromfilling relationship,

and to interrupt the feeding, and, cutting means for severing materialextending outwardly from the shell after the feeding means and shellhave been relatively moved from fillingrelationship.

6. In a shell filling machine, means for feeding a charge to a shellwhenthe shell and feeding means are located in filling relationship, theshell and feeding means being relatively moved during a kportion of thefeeding operation, means actuated automatically in the relative movementof the shell and feeding means to relatively. move the shell and feedingmeans from filling re-` lationship, and, cutting means for severingmaterial extending outwardly from the shell after the feeding means andshell have been relatively moved from filling relationship.

7. In a machine for filling a shell with a charge of viscous material,means for feeding-a charge of material to a shell when thek shell andfeeding means are located in filling relationship, cutting means forsevering material extending outwardly from the shell after the feedingmeans and shell have been relatively moved from filling relation'- ship,and means for tamping the charge within the shell. s

8i. In a machine for filling a shell with a charge of viscous material,means for feeding a charge of material to a shell whenthe shell andfeeding means are'- located in filling relationship, cutting means forsevering material extending outwardly fromthe shell after the feedingmeans and vshell have been relatively moved from filling relationship,means for tamping the charge within the shell, and means for crimpingthe mouth of the shell to forma closure therefor.

9. In a machine for filling and closing shells, means for presenting ashell successively; to filling, cutting, tamping, vand crimping means,and means for simultane- -ously positioning shells inoperativerelationships to the filling, cutting, tamping, andcrimping means.r

10. A method of filling cous material, which includes feeding materialto the shell from a supply through an open end of the shell, drawing theshell and supply relatively apart to produce a contracted rod extendingwithin the shell, severing the rod adjacent the open end of the shelland tamping the material extending beyond the end of the shell into theunfilled portion of the shell adjacent the open vend thereof.

NORMAN n. FULTON.

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,a shell with vis

